Related Experiment Video
Updated: Jul 19, 2026

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
Published on: May 10, 2024
Polymorphisms within inflammatory genes and colorectal cancer.
Stefano Landi1, Federica Gemignani, Fabio Bottari
1Genetics-Department of Biology, University of Pisa, via S, Giuseppe 22, 56126, Pisa, Italy. slandi@biologia.unipi.it
This study found no link between common gene variations in inflammation and colorectal cancer (CRC) risk. Larger sample sizes may be needed to detect subtle genetic effects on CRC development.
Area of Science:
- Genetics
- Oncology
- Inflammation Biology
Background:
- Chronic inflammation is a known risk factor for colorectal cancer (CRC).
- Genetic variations (polymorphisms) in inflammatory genes may influence inflammation levels and CRC susceptibility.
- This study focused on specific single nucleotide polymorphisms (SNPs) in key inflammation-related genes.
Purpose of the Study:
- To investigate the association between ten selected single nucleotide polymorphisms (SNPs) in inflammation-related genes and the risk of colorectal cancer (CRC).
- To determine if specific genetic variations in genes like TLR4, CD14, MCP1, IL12A, NOS2A, TNF, and PTGS1 are linked to CRC development.
Main Methods:
- Genotyping of ten single nucleotide polymorphisms (SNPs) in inflammation-related genes.
- Case-control study design involving 377 colorectal cancer (CRC) cases and 326 controls.
- Statistical analysis to assess the association between SNPs and CRC risk.
Main Results:
- No statistically significant association was found between any of the investigated single nucleotide polymorphisms (SNPs) and colorectal cancer (CRC) risk.
- The analyzed genetic variations in inflammatory genes did not appear to modify CRC risk in the studied population.
Conclusions:
- The selected inflammatory genes and their analyzed polymorphisms may not play a significant role in the carcinogenic process of the colorectum.
- The absence of detected associations could be due to a lack of biological effect, a very small effect size undetectable with the current sample size, or that these specific SNPs are not involved in CRC pathogenesis.
- Future research with larger sample sizes might be necessary to uncover potential subtle associations between inflammatory gene polymorphisms and colorectal cancer risk.
Related Concept Videos
Inflammatory Bowel Disease III: Crohn's Disease
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Pleiotropy